OP-400 is specifically designed for filling stainless steel tubes for OPGW cable applications, where hydrogen contamination of fibres is likely as a result of the laser welding process.


OP-400 contains an efficient hydrogen scavenger to absorb any hydrogen that may arise from the welding process or be generated throughout the life span of the cable. It is flexible down to –50°C, non-draining at 80°C and thixotropic for controlled filling at ambient temperature. OP-400 exhibits zero oil separation and provides excellent resistance to corrosion and oxidation for long-term stability.

Product Name:

Filling Compound For Optical Fiber Cable


OP-400 is compatible with most OPGW cable materials. Tests on typical materials such as aluminum, S/S wire and coated optical fiber shows no reaction but it is recommended that compatibility tests are made with all materials likely to come into contact with the gel.


OP-400 is suitable for conventional pumping equipment and processing enabling cable filling without voids created by compound shrinkage.